Telescopic surface sampling drill mast working arm

Abstract

The utility model provides a telescopic surface sampling drilling machine working arm. Telescopic surface sampling drilling machine working arm includes lower slide frame subassembly, the basic arm subassembly of sliding in lower slide frame subassembly, telescopic arm subassembly and power head lifting subassembly for installing drilling machine power head along basic arm subassembly sliding of sliding in basic arm subassembly, basic arm subassembly is obliquely arranged on lower slide frame subassembly to form high position A and low position B, the winch is equipped on lower slide frame subassembly, the end near high position A of telescopic arm subassembly is equipped with sheave assembly, the wire rope on winch forms the connecting end for connecting drill pipe after winding sheave assembly. The utility model adopts the basic arm subassembly along lower slide frame subassembly telescopic, along basic arm subassembly telescopic telescopic arm subassembly, can fast adjustment operation height and distance, can adapt complex terrain (such as mountain, narrow site) or need frequent movement's operation scene.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and in particular to a telescopic surface sampling drilling rig working arm. Background Technology

[0002] Surface sampling drilling rigs are commonly used for heavy-duty or high-precision operations. They generally employ a boom, which is mostly a truss boom structure, ensuring good rigidity and stability. However, it also has the following disadvantages: (a) Insufficient flexibility Truss arms are typically fixed or modular assembly structures. Adjusting their angle and position requires multi-segment splicing or hydraulic assistance. They cannot extend or retract and are unsuitable for use in complex terrains and narrow spaces. (2) Low versatility The size and stroke of the truss boom need to be customized according to the specific equipment. If the working environment changes (such as the drilling depth or site width exceeding the design range), the components need to be readjusted or replaced, which is costly. (iii) Complex installation and maintenance High installation requirements: The horizontal and vertical alignment must be strictly calibrated, otherwise it may lead to truss deformation or failure to properly install the wall-mounted supports; High maintenance costs: After long-term use, fatigue cracks or loose bolts may appear at the truss connections, requiring regular inspection and reinforcement; (iv) Weight and transportation restrictions Truss arms are mostly made of high-strength steel, resulting in a large overall weight. Transportation and on-site assembly require large hoisting equipment, which increases operating costs. (v) Poor adaptability to dynamic load Under impact loads (such as hard rock drilling), the rigid structure of the truss arm may cause stress concentration, which can easily lead to metal fatigue or cracking after long-term use. (vi) Space occupation issues: Truss arms usually need to be fixedly installed or occupy a large working radius, which may affect the coordinated operation of other equipment. Utility Model Content

[0003] The purpose of this invention is to provide a telescopic surface sampling drilling rig working arm with high flexibility and adaptability.

[0004] The technical solution of this utility model is: a telescopic surface sampling drilling rig working arm, including a lowering frame assembly, a basic arm assembly slidably disposed on the lowering frame assembly, a telescopic arm assembly slidably disposed within the basic arm assembly, and a power head lifting assembly for installing the drilling rig power head sliding along the basic arm assembly. The basic arm assembly is inclinedly disposed on the lowering frame assembly to form a high position A and a low position B. A winch is provided on the lowering frame assembly. A pulley assembly is provided at the end of the telescopic arm assembly near the high position A. The wire rope on the winch forms a connecting end for connecting the drill rod after rotating around the pulley assembly.

[0005] The above solution uses a basic boom assembly that extends and retracts along the slide assembly and a telescopic boom assembly that extends and retracts along the basic boom assembly. This allows for rapid adjustment of working height and distance, and enables the solution to adapt to complex terrain (such as mountains and narrow spaces) or work scenarios that require frequent movement.

[0006] Preferably, the lowering frame assembly includes a frame, a plurality of support rods connected to the frame, a support frame inclinedly disposed on the plurality of support rods, and a slide connected to both ends of the support frame. The basic boom assembly is slidably placed on the slide. A luffing cylinder is connected between the frame and the support frame. The support frame is provided with a lowering frame cylinder connected to the basic boom assembly.

[0007] Preferably, the power head lifting assembly includes a lifting cylinder and a first mounting bracket for mounting the drill rod power head. One end of the cylinder of the lifting cylinder is located inside the first mounting bracket, and the other end of the cylinder of the lifting cylinder extends to the high position A. The piston rod of the lifting cylinder is connected to the low position B of the basic arm assembly. The two ends of the first mounting bracket are provided with second sliding grooves that are slidably connected to the basic arm assembly.

[0008] Preferably, the basic arm assembly is further slidably connected to a guide mechanism, the guide mechanism including a guide slider that is tightly fitted with the cylinder, a first guide bracket disposed at both ends of the guide slider, and a second guide bracket for guiding the drill rod with a gap disposed above the guide slider. The first guide bracket is provided with a third slide groove adapted to the basic arm assembly.

[0009] Preferably, the basic arm assembly includes a second mounting bracket, a first box-shaped arm, and a side bracket. The first box-shaped arm and the side bracket extend from a high position A to a low position B. The side bracket is connected to both sides of the first box-shaped arm. The side brackets on both sides are provided with first mounting seats for connecting piston rods. The telescopic arm assembly is slidably disposed inside the first box-shaped arm. The power head lifting assembly is slidably connected to the side bracket.

[0010] Preferably, the telescopic boom assembly includes a second box-shaped boom slidably connected to the basic boom assembly, and a second mounting seat is provided at one end of the second box-shaped boom near the high position A, and the pulley assembly is connected to the second mounting seat; the basic boom assembly is provided with a telescopic cylinder connected to the second box-shaped boom.

[0011] Preferably, the second box-shaped arm is provided with a limiting component that can engage with the basic arm assembly. The limiting component includes a pin cylinder installed on the inner wall of the second box-shaped arm, a pin seat disposed through two opposite side walls of the second box-shaped arm, and a pin slidably disposed in the pin seat. The two pins are respectively connected to the telescopic rod of the pin cylinder through a connecting rod. The action of the pin cylinder can push out the pin so that the pin is inserted into the basic arm assembly to limit the position of the telescopic arm assembly.

[0012] Preferably, the telescopic surface sampling drill arm further includes a first support plate and a second support plate for supporting the drill rod. The two ends of the first support plate are respectively connected to the high position A and the low position B of the basic arm assembly. One end of the second support plate is connected to the telescopic arm assembly, and the other end of the second support plate is slidably disposed on the first support plate.

[0013] Preferably, the end of the basic arm assembly near the lower position B is connected to a leg assembly, the leg assembly including a mounting plate, ear plates connected to both ends of one side of the mounting plate, and foot plates hinged to each ear plate, the side of the mounting plate away from the ear plates being connected to the basic arm assembly.

[0014] Preferably, a ladder assembly is provided on the side of the basic arm assembly.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows: I. This utility model adopts a basic arm assembly that extends and retracts along the slide frame assembly and a telescopic arm assembly that extends and retracts along the basic arm assembly, which can quickly adjust the working height and distance and adapt to complex terrain (such as mountains and narrow spaces) or working scenarios that require frequent movement. Second, the basic boom assembly of this utility model can adjust the angle through a variable-amplitude cylinder, enabling stable operation on uneven ground and avoiding the problem of equipment being unable to unfold due to terrain limitations. Third, the telescopic boom assembly of this utility model achieves rapid extension and retraction through hydraulics, and its drilling efficiency is significantly higher than that of a fixed truss boom, making it suitable for rapid construction needs such as rural housing construction and geological exploration. IV. The telescopic arm of this utility model can be fully retracted when not in operation, reducing the space occupied, facilitating transportation and on-site deployment, and improving flexibility. 5. The telescopic boom adopts a flexible box-shaped boom structure. Under impact loads (such as hard rock drilling), this flexible structure of the telescopic boom can disperse stress, reduce the risk of metal fatigue, and reduce cracking. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram (I) of the telescopic surface sampling drilling rig working arm provided for this utility model. Figure 2 A three-dimensional structural schematic diagram (II) of the telescopic surface sampling drilling rig working arm provided for this utility model. Figure 3 This is a structural schematic diagram of the outrigger assembly; Figure 4 This is a structural schematic diagram of the glide vehicle assembly; Figure 5 This is a structural schematic diagram of the power head lifting assembly; Figure 6 This is a schematic diagram of the guiding mechanism; Figure 7 This is a schematic diagram of the basic arm assembly; Figure 8 This is a structural schematic diagram of the telescopic arm assembly; Figure 9 This is a schematic diagram of the installation structure of the limit component within the telescopic arm assembly.

[0017] In the attached diagram: 001, outrigger assembly; 101, foot plate; 104, ear plate; 105, mounting plate; 002, slide frame assembly; 201, frame; 202, slide frame; 203, winch; 204, support frame; 205, luffing cylinder; 206, first slide rail; 208, slide frame cylinder; 209, support rod; 003, power head lifting assembly; 301, first mounting bracket; 302, cylinder; 303, piston rod; 304, second slide rail; 005, ladder assembly; 006, second support plate; 007, guide mechanism; 701, guide slider; 702, wear-resistant support plate; 703, the... 704. Second guide bracket; 705. Third slide rail; 706. First guide bracket; 007. Basic arm assembly; 808. Second mounting bracket; 809. First box-type arm; 800. Side bracket; 800. First mounting seat; 801. Third mounting bracket; 802. Telescopic cylinder; 803. Pin hole; 804. Limiting block; 005. Telescopic arm assembly; 901. Second mounting seat; 902. Third mounting seat; 903. Second box-type arm; 904. Limiting assembly; 910. Pin seat; 911. Pin; 912. Connecting rod; 913. Pin cylinder; 914. Fourth mounting seat; 010. Pulley assembly. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0019] like Figure 1 , Figure 2 As shown, the telescopic surface sampling drilling rig working arm provided in this embodiment includes a leg assembly 001, a slide frame assembly 002, a power head lifting assembly 003, a first support plate 004, a ladder assembly 005, a second support plate 006, a guide mechanism 007, a basic arm assembly 008, a telescopic arm assembly 009, and a pulley assembly 010.

[0020] The basic boom assembly 008 is inclined and slidably mounted on the lower slide frame assembly 002 to form a high position A and a low position B. The outrigger assembly 001 is mounted on the low position B of the basic boom assembly 008 and is used to support the entire boom during operation. The basic boom assembly 008 can slide along the lower slide frame assembly 002. The lower slide frame assembly 002 is mounted on the vehicle chassis. The telescopic boom assembly 009 is mounted inside the basic boom assembly 008 and extends and retracts within the first box boom 802 under the action of the telescopic cylinder 806. The power head lifting assembly 003 is slidably mounted on the basic boom assembly 008 and can move vertically under the push of the cylinder.

[0021] like Figure 1 , Figure 2 As shown, the outrigger assembly 001 includes a mounting plate 105, ear plates 104 connected to both ends of one side of the mounting plate 105, and foot plates 101 hinged to each ear plate 104. The side of the mounting plate 105 away from the ear plates 104 is connected to the basic arm assembly 008.

[0022] like Figure 1 , Figure 4As shown, the lowering frame assembly 002 includes a frame 201, multiple support rods 209 connected to the frame 201, a support frame 204 inclinedly arranged on the multiple support rods 209, and a slide 202 connected to both ends of the support frame 204. Each end of the slide 202 is provided with a first sliding groove 206, and the lower end of the side bracket 803 of the basic boom assembly 008 slides on the first sliding groove 206. A luffing cylinder 205 is connected between the frame 201 and the support frame 204, and the luffing cylinder 205 adjusts the pitch angle of the support frame 204 and the basic boom assembly 008 on it. The support frame 204 is provided with a lowering frame cylinder 208 connected to the basic boom assembly 008, and the lowering frame cylinder 208 can drive the basic boom assembly 008 to slide the support frame 204. A winch 203 is provided at the lower end of the support frame 204, and a wire rope (not shown) is wound around the winch 203.

[0023] like Figure 2 , Figure 5 As shown, the power head lifting assembly 003 includes a lifting cylinder and a first mounting bracket 301 for mounting the drilling rig power head. One end of the cylinder barrel 302 of the lifting cylinder is located inside the first mounting bracket 301, and the other end of the cylinder barrel 302 extends towards the higher position A, passing sequentially through the guide slider 701 on the guide mechanism 007 and the second mounting bracket 801 on the basic arm assembly 008. The piston rod 303 of the lifting cylinder is connected to the first mounting seat 804 on the lower position B of the basic arm assembly 008, and the two ends of the first mounting bracket 301 are provided with second sliding grooves 304 that are slidably connected to the basic arm assembly 008.

[0024] like Figure 1 , Figure 2 As shown, the two ends of the first support plate 004 are respectively connected to the high position A second mounting bracket 801 and the low position B third mounting bracket 805 of the basic arm assembly 008. One end of the second support plate 006 is connected to the third mounting base 902 of the telescopic arm assembly 009, and the other end of the second support plate 006 is slidably disposed on the first support plate 004.

[0025] like Figure 2 , Figure 6 As shown, the guiding mechanism 007 includes a guide slider 701 that is tightly fitted with the cylinder 302, first guide supports 705 disposed at both ends of the guide slider 701, and a second guide support 703 for guiding the drill rod, which is spaced above the guide slider 701. The first guide support 705 is provided with a third groove 704 that is adapted to the side support 803 of the basic arm assembly 008.

[0026] When the lifting cylinder operates, the cylinder 302 extends and retracts relative to the piston rod 303, and the guide mechanism 007 moves accordingly. For example... Figure 7 As shown, the first box-shaped arm 802 is provided with a limiting block 808. When the guide mechanism 007 rises and contacts the limiting block 808, it reaches the highest upper limit position and stops.

[0027] like Figure 2 , Figure 7 As shown, the basic arm assembly 008 includes a second mounting bracket 801, a first box-shaped arm 802, and a side bracket 803. The first box-shaped arm 802 and the side bracket 803 extend from a high position A to a low position B. The side bracket 803 is connected to both sides of the first box-shaped arm 802. The side brackets 803 on both sides are provided with first mounting seats 804 for connecting piston rods 303. The telescopic arm assembly 009 is slidably disposed inside the first box-shaped arm 802. The second sliding groove 304 and the third sliding groove 704 are both slidably connected to the lower end of the side bracket 803.

[0028] The second mounting bracket 801 is arched, with an inner hole through which the cylinder 302 passes, and one end of the first support plate 004 is mounted on its upper surface. A first mounting seat 804 and a third mounting bracket 805 are connected between the two side brackets 803, with the first mounting seat 804 and the third mounting bracket 805 positioned near the lower position B. The first mounting seat 804 is fixed to the piston rod 303 by bolts. The third mounting bracket 805 is used to mount the other end of the first support plate 004.

[0029] The first box-shaped arm 802 is equipped with a telescopic cylinder 806. The second box-shaped arm 903 of the telescopic arm assembly 009 is slidably disposed in the first box-shaped arm 802, and is driven to move by the telescopic cylinder 806 connected between the first box-shaped arm 802 and the second box-shaped arm 903, so as to adjust the height position of the drill rod installed on the telescopic arm assembly 009.

[0030] like Figure 1 , Figure 6 , Figure 8As shown, the telescopic arm assembly 009 includes a second mounting base 901, a third mounting base 902, a second box-shaped arm 903, and a limiting assembly 904. The second mounting base 901 is disposed at one end of the second box-shaped arm 903, and the other end of the second box-shaped arm 903 is inserted into the first box-shaped arm 802. A pulley assembly 010 is mounted on the side of the second mounting base 901 away from the second box-shaped arm 903. The third mounting base 902 is disposed on the side surface of the second mounting base 901 near the second box-shaped arm 903. One end of the second support plate 006 is connected to the third mounting base 902, and the other end of the second support plate 006 passes through the gap between the second guide bracket 703 and the guide slider 701 and is attached to the first support plate 004. Figure 6 As shown, the upper surface of the guide slider 701 is provided with a wear-resistant support plate 702, and the second support plate 006 slides in contact with the wear-resistant support plate 702.

[0031] like Figure 7 , Figure 8 As shown, the outer periphery of the second box-shaped arm 903 is provided on a slider (not labeled), and the slider is in sliding contact with the inner wall of the first box-shaped arm 802.

[0032] like Figure 7 As shown, the first box-shaped arm 802 has pin holes 807 on its two opposite side walls. Figure 8 , Figure 9 As shown, the second box-shaped arm 903 is equipped with a limiting component 904 that can engage with the basic arm assembly 008. The limiting component 904 includes a pin cylinder 913 mounted on the inner wall of the second box-shaped arm 903, a pin seat 910 disposed through two opposite side walls of the second box-shaped arm 903, and a pin 911 slidably disposed within the pin seat 910. The pin cylinder 913 is mounted on the inner wall of the second box-shaped arm 903 via a fourth mounting base 914. The two pins 911 are respectively connected to the telescopic rod of the pin cylinder 913 via connecting rods 912. When the second box-shaped arm 903 extends to the working position, the pin cylinder 913 actuates to push out the pin 911, causing the pin 911 to insert into the pin hole 807, thereby limiting the position of the telescopic arm assembly 009 and improving stability and safety.

[0033] like Figure 1 As shown, the wire rope on the winch 203 forms a connecting end for connecting the drill rod after rotating around the pulley assembly 010. The power head of the drilling rig is mounted on the first mounting bracket 301, and the drill rod is placed on the first support plate 004 and the second support plate 006. One end of the drill rod passes through the second guide bracket 703 and connects to the connecting end, while the other end of the drill rod, where the drill bit is located, extends towards the lower position B.

[0034] A ladder assembly 005 is provided on the side of the basic arm assembly 008. The ladder assembly 005 is used to allow the operator to go up and down the basic arm during maintenance work.

[0035] This utility model adopts a two-section boom, a basic boom and a telescopic boom, which can extend during operation and retract during transportation, resulting in higher operating efficiency and more convenient relocation and transportation.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A telescopic surface sampling drilling rig boom, comprising a lowering frame assembly (002) and a basic boom assembly (008) slidably disposed on the lowering frame assembly (002), wherein the basic boom assembly (008) is inclinedly disposed on the lowering frame assembly (002) to form a high position A and a low position B, characterized in that, It also includes a telescopic boom assembly (009) slidably disposed within the basic boom assembly (008) and a power head lifting assembly (003) for mounting the drill rig power head that slides along the basic boom assembly (008). A winch (203) is provided on the lower frame assembly (002). A pulley assembly (010) is provided at the end of the telescopic boom assembly (009) near the high position A. The wire rope on the winch (203) forms a connecting end for connecting the drill rod after rotating around the pulley assembly (010).

2. The telescopic surface sampling drilling rig boom according to claim 1, characterized in that, The glide frame assembly (002) includes a frame (201), a plurality of support rods (209) connected to the frame (201), a support frame (204) inclinedly arranged on the plurality of support rods (209), and a slide (202) connected to both ends of the support frame (204). The basic boom assembly (008) is slidably placed on the slide (202). A luffing cylinder (205) is connected between the frame (201) and the support frame (204). The support frame (204) is provided with a glide frame cylinder (208) connected to the basic boom assembly (008).

3. The telescopic surface sampling drilling rig boom according to claim 1, characterized in that, The power head lifting assembly (003) includes a lifting cylinder and a first mounting bracket (301) for mounting the drill pipe power head. One end of the cylinder barrel (302) of the lifting cylinder is located inside the first mounting bracket (301), and the other end of the cylinder barrel (302) of the lifting cylinder extends to the high position A. The piston rod (303) of the lifting cylinder is connected to the low position B of the basic arm assembly (008). The two ends of the first mounting bracket (301) are provided with second sliding grooves (304) that are slidably connected to the basic arm assembly (008).

4. The telescopic surface sampling drilling rig boom according to claim 3, characterized in that, The basic arm assembly (008) is also slidably connected to a guide mechanism (007). The guide mechanism (007) includes a guide slider (701) that is tightly fitted with the cylinder (302), a first guide bracket (705) located at both ends of the guide slider (701), and a second guide bracket (703) located above the guide slider (701) for guiding the drill rod. The first guide bracket (705) is provided with a third groove (704) that is adapted to the basic arm assembly (008).

5. The telescopic surface sampling drilling rig boom according to claim 3, characterized in that, The basic arm assembly (008) includes a second mounting bracket (801), a first box-shaped arm (802), and a side bracket (803). The first box-shaped arm (802) and the side bracket (803) extend from a high position A to a low position B. The side bracket (803) is connected to both sides of the first box-shaped arm (802). The side brackets (803) on both sides are provided with first mounting seats (804) for connecting piston rods (303). The telescopic arm assembly (009) is slidably disposed inside the first box-shaped arm (802). The power head lifting assembly (003) is slidably connected to the side bracket (803).

6. The telescopic surface sampling drilling rig boom according to claim 1, characterized in that, The telescopic boom assembly (009) includes a second box-shaped boom (903) slidably connected to the basic boom assembly (008). A second mounting base (901) is provided at one end of the second box-shaped boom (903) near the high position A. The pulley assembly (010) is connected to the second mounting base (901). The basic boom assembly (008) is provided with a telescopic cylinder (806) connected to the second box-shaped boom (903).

7. The telescopic surface sampling drilling rig boom according to claim 6, characterized in that, The second box-shaped arm (903) is provided with a limiting component (904) that can engage with the basic arm assembly (008). The limiting component (904) includes a pin cylinder (913) installed on the inner wall of the second box-shaped arm (903), a pin seat (910) disposed through two opposite side walls of the second box-shaped arm (903), and a pin (911) slidably disposed in the pin seat (910). The two pins (911) are respectively connected to the telescopic rod of the pin cylinder (913) through a connecting rod (912). When the pin cylinder (913) is activated, it can push out the pin (911) so that the pin (911) is inserted into the basic arm assembly (008) to limit the position of the telescopic arm assembly (009).

8. The telescopic surface sampling drilling rig boom according to claim 1, characterized in that, It also includes a first support plate (004) and a second support plate (006) for supporting the drill rod. The two ends of the first support plate (004) are respectively connected to the high position A and the low position B of the basic arm assembly (008). One end of the second support plate (006) is connected to the telescopic arm assembly (009), and the other end of the second support plate (006) is slidably disposed on the first support plate (004).

9. The telescopic surface sampling drilling rig boom according to claim 1, characterized in that, The basic arm assembly (008) is connected to a leg assembly (001) near the lower position B. The leg assembly (001) includes a mounting plate (105), ear plates (104) connected to both ends of one side of the mounting plate (105), and foot plates (101) hinged to each ear plate (104). The side of the mounting plate (105) away from the ear plates (104) is connected to the basic arm assembly (008).

10. The telescopic surface sampling drilling rig boom according to claim 1, characterized in that, A ladder assembly (005) is provided on the side of the basic arm assembly (008).

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